Temagamite

Temagamite
General
CategoryTelluride mineral
FormulaPd3HgTe3
IMA symbolTem
Strunz classification2.BC.50
Crystal systemOrthorhombic
Unknown space group
Identification
ColorBright white to grey
Crystal habitmicroscopic included grains
Mohs scale hardness2.5
LusterMetallic
DiaphaneityOpaque
Specific gravity9.5
PleochroismWeak
References

Temagamite is a bright white palladium mercury telluride mineral with a hardness of 2+12 on the Mohs scale. Its chemical formula is Pd3HgTe3. It was discovered at the Temagami Mine on Temagami Island, Lake Temagami in 1973, and it represents a rare mineral in the Temagami Greenstone Belt.

It occurs as microscopic inclusions within massive chalcopyrite at Temagami in association with other rare tellurides: merenskyite, stützite, hessite and an unnamed Pd-Hg-Ag telluride. In addition to the discovery locality, it has been reported from the Stillwater igneous complex in Montana and the New Rambler coppernickel mine in the Medicine Bow Mountains of Wyoming.